Electrical device for controlling the flow of liquids



-'Marcli 2 4.1925.

A. G. JACKSON "ELECTRICAL DEVICE FOR CONTROLLING THE FLOW-"0F LIQUIDSFiled Dec. 13, 1922 nu M I v I T 9 B i\E\\\x Patented Mar 24, 1925.

ALFRED GEORGE JACKSON. OF BRISBANE. QUEENSLAND. AUSTRALIA.

ELECTRICAL DEVICE FOR CGNTROLLING THE FLOW OF LIQUIDS.

Application filed December To 1/11 val/0m if may concern Be it knownthat I, ALFRED GEouoE JAtfK- sow, subject of the King of the l nitedKing dom of Great Britain and Ireland, residing at Brisbane. in theState ot Queensland. Commonwealth of Australia. have invented new anduseful lmproven'ients in lllectrical Devices for Controlling the Flow ofLiquids. of which the following is a specification.

My invention relates to devices for controlling the flow of liquids, andhas refer ence more particularly to apparatus suitable for use infilling bottles and containers with liquid and so constructwl that theoperator in holding a container against the filling; nozzle closes anelectric circuit Wl'llCl"! controls the movements of the valve in such amanner that the placing of a container in position tor filling,automatieally starts the flow of liquid, and the removal of such con--tainer stops the flow of liquid.

The object of my invention is to prevent waste oi liquid and allow theworker to have tree use of both hands to: handling the containers,giving greater speed and accuracy of filling.

l attain my object by connecting the liquid supply to a delivery tube orvalve casin at the delivery end of which is an aperture adapted to beclosed by a plunger either iron or part iron surrounded by a coil orsolenoid outside the delivery tube, the plunger thus acting in thetwo-told capacity of a valve and a magnetic core. The solenoid. whenenergized by an electric: current, lifts the valve otl its seat therebyallowing the liquid to How, the stoppage of the current through thesolenoid allowing the valve to close immediately by gravity. Theenergiziirs of the solenoid attained by the movement of a suitableswitch which is operated by the act of placing: a container in fillingposition, to close the circuit through the solenoid and current supply.

The drawing accompanying and forming part of this specification is avertical sectional View of an apparatus embodying the features of thepresent invention and showing diagrammatically the electrical connections and the source of energy.

In the apparatus shown in the drawing, F indicates a delivery tubehaving an inlet I adapted to be connected to a supply of liquid by anyconvenient means.

The outlet nozzle L may be screwed into the delivery tube forconvenience of inspec- Serial No. 606,667.

tion (11" the valve seat ti on which normally rests the plunger ll madewholly or partly of iron.

The delivery tube is made of non-magmiic material and is surrounded bythe wire coil or solenoid disposed in such position that the plunger llis drawn oil the valve seat ti when the solenoid is cner sized andreturns to its original positiin'i by gravity or stop nige oi theenergizing current in the solenoid.

1 plate N through which nczzlc lQ passes is hinged at M to a liuacketfixed to th nozzle or bottom J ol the delivery tube. At the point I nearthe free end of the plate N a rod is hinged which extends towards thecontact points ll and l) and has its free end in close proximitythereto. As shown in the drawing, the rod 0 is adapted to make contactwith the points B and I). thus completing the circuit through them tothe solenoid whenever the plate N is raised. the rod being composed ofor tipped with conducting material. The ends of the coil 0 are connectedto terminals A and I). while terminals A and I) are connected by wiresIt and S respectively to an electric supply T. It will thus be seen thatwhen a bottle U is placed under the nozzle L and the plate N is pushedupward thereby to the extent that the rod 0 makes the connection betweenthe two contacts B and l the electric circuit will be closed andsolenoid C will be energized, the iron plunger being thereby drawn intothe solenoid and opening the valve. The movement of the plunger willdepend on the energizing and de-energizing of the solenoid.

The terminals A, B, and D, are attached to the insulatingplate E, whichitself is conveniently attached to the solenoid and delivery tube. or ita metal plate is used insulated therefrom electrically by well knownmeans.

It the plunger H is made with only slight clearance in the deliverytube, the plunger may be in the torm ot a tube with apertures at K asshown. to allow of the tree flow of liquid, said apertures beingdisposed in such position as not to interfere with the closing of thevalve upon the seat G. The end of plunger H may be of rubber, metal orother material suitable tor the liquid used and to make a close seating.It will be seen that the valve mechanism is operated entirely byelectromagnetic means from outside the pipe or deliver tube. thusavoiding the use of any rod or lever or any openings. glands or packing.The consequent elimination ot friction and leakage render this mechanismwell suited for use in controlling the flow of hot liquids. andespecially those which are ot a corrosive character.

The (le -energizing of the solenoid in the structure above described iseffected by the removal of the vessel from filling position. whichpermits the plate X to drop and thus Withdraw the rod t) from betweenthe terminals P) and l).

\Vhat I do claim a my invention and devside to secure by Letters Patentis:--

l. A. device of the character described, comprising a valve casin havingan inlet port and an outlet port. a movable plunger of magneticn'iaterial within said casing and adapted to close said outlet port; anele tric coil encircling said casing and in nor-- mallv open circuitwith a source ot electrical energy. a pivoted lever disposed below saidasing and adapted when swung in one direction to close the circuitthrough said coil thereby to operate the plunger to open said outletport.

ft device ot' the class described. coinprising a valve casing havin; aninlet port and an outlet port. a hollow plunger of magnetic materialWithin said casing adapted to permit the passage of a liquidtherethrough and having means for closing the outlet port, an electriccoil encircling said casing and in normally open circuit with a sourceof electrical energy. a pivoted lever disposed belovv said casing! andadapted when swung in one direction to close the circuit through saidcoil thereby to operate the plunger to open said outlet port.

i. A device of the class described. comprising a casing having an inletport. a nozzle having an outlet port removably secured in said casing. amovable magnetic plunger within the casing and adapted to close saidoutlet port. an electric coil ei'icircling said casing and adapted whenei'iergized to raise said plunger from its port-closing 'msition. avertically movable member encircling: said nozzle. and means carried bysaid member for closing a circuit through said coil when the member ismoved in one direction.

In testimony whereof he has signed his name to this specification.

ALFRED GEORGE JACKSON.

